Deaerators are commonly used in steam-generating boilers. Rather than introduce oxygen, like an aerator, they remove dissolved oxygen and other gasses from the water. They are necessary for eliminating corrosion and carbon dioxide. To keep your system running smoothly, be sure to give them proper attention.
Keep Parts Up To Date
One of the most basic ways to keep your deaerator running is to routinely check its parts. As they wear down, you may need to start looking into replacement spray valves or trays, depending on which type of system you have. Don’t forget to match your specific spray pattern and capacity when choosing these parts. Once you have this figured out, you might even consider stocking up for the future.
Introduce Oxygen Scavengers
Unfortunately, deaerators may not be able to catch 100% of the dissolved oxygen in your feedwater. There are additives that can compensate, also known as chemical deaerators. One commonly used chemical is sodium sulfite. It usually works best to place these within the tank of the system, but they can be placed elsewhere. These scavengers can eat up the last bits of oxygen that the mechanical process misses. They are also a good gauge of your deaerator’s condition; if you find you need more, it could mean deterioration.
It is best practice to schedule routine dissolved oxygen (DO2) studies. You should collect water samples from all parts of the system, so be ready to disconnect what you have to. It is a good idea to also conduct physical inspections of your deaerator every so often. It might be most efficient to do this at the same time as the DO2 studies.
Steam systems and boilers are important for the operation of many different utilities and power generators. To keep your system running smoothly, a deaerator can be critical. Keep your boiler in tip-top shape by staying on top of your maintenance necessities.